The joke was on Shin-Soo Choo for most of Monday’s Reds-Cardinals game, as the newly converted center fielder dropped a pair of Yadier Molina flyballs to give St. Louis three of its four runs.

Then came the top of the ninth inning. With Cardinals closer Mitchell Boggs in a 4-4 game, the Reds exploded — well, that’s probably not precisely the right word — for nine runs, turning the NL Central battle into a 13-4 laugher.

Two intentional walks, three regular walks. An error and two more infield singles that could have been errors.

In all, it was pretty much the ugliest inning you’ll ever see from a good baseball team. Boggs and Rzepczynski combined to throw 52 pitches to 16 batters. Boggs was charged with six earned runs, taking his ERA to 14.54. Rzepczynski gave up two runs.